.product .foot {
    position: fixed;
    bottom: 0;
    width: 100%;
    display: flex;
    justify-content: space-evenly;
}
.product .foot div{
    margin: 5px;
    padding: 5px;
}
.product .foot .obtn{
    background-color: orange;
    border-radius: 5px;
}
.product .foot .btn{
    background-color: aqua;
    border-radius: 10px;
}